Around here
Around Mongaup River
- Moderate: Paddle from Ten Mile River to LackawaxenPaddling · 2-4 Hours13.7 mi (opens in a new tab)
- Easy: Paddle from Narrowsburg to Ten Mile RiverPaddling · 2-3 Hours14.4 mi (opens in a new tab)
- Exciting: Paddle from Lackawaxen to SparrowbushPaddling · 8-10 Hours15.2 mi (opens in a new tab)
- Float from Lackawaxen to HighlandRiver Tubing · 1-2 Hours15.2 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US
About this river
Mongaup River is a 23.9 mile river near Kittatinny Canoes - Matamoras Base in Pennsylvania. Streamflow is measured at the USGS gauge Mongaup River near Mongaup NY (site 01433500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1939 to 2026
Mongaup River typically runs highest in April, at a median 573 cfs, and lowest in October, at 135 cfs. The highest flow on record for any single day is 12,300 cfs, in 1955.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 352 | 205 to 525 |
| February | 363 | 196 to 558 |
| March | 447 | 290 to 646 |
| April | 573 | 344 to 771 |
| May | 389 | 223 to 595 |
| June | 266 | 130 to 459 |
| July | 209 | 87 to 355 |
| August | 176 | 81 to 306 |
| September | 137 | 54 to 258 |
| October | 135 | 66 to 284 |
| November | 184 | 94 to 399 |
| December | 354 | 170 to 585 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 69 years of record. Statistics published by the US Geological Survey for Mongaup River near Mongaup NY (site 01433500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Mongaup River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Mongaup River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.






